Nut-lock



(No Model.)

- F. RBESSING.

NUT LOOK Patented Mar. 17,1896.

p WITNESSES: 1/04 M 0% UNITED STATES PATENT OFFICE.

FRED REESSING, OF MOLINE, ILLINOIS.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent No. 556,642, dated March17, 1896.

Application filed May 31, 1895. Serial No. 551,134. (No model.)

To aZZ whom it may concern-.-

Be it known that I, FEED REEssING, a citizen of the United States, and aresident of Moline, in the county of Rock Island and State of Illinois,have invented certain new and useful Improvements in Nut-Locks; and I dohereby declare that the following is a full, clear, and exactdescription of the invention, which will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, which form a part of this specification.

My invention relates to improvements in nut-locks adapted moreespecially for use in connection with railroad-rails and for connectingparts of machinery which are subjected to vibration whereby the nuts areliable to work loose.

The object of the invention is to provide an improved nut-lock whichshall be simple and economical in construction, and which shall possesssuperior advantages with respect to efficiency in operation.

The invention consists in the novel construction and combination ofparts hereinafter fully described and claimed.

In the accompanying drawings, Figure 1 is a side elevation showing myimproved device used for locking the nuts of the bolts which connect tworailroad-rails together. Fig. 2 is a detail perspective view showing thelocking-arm thrown out of engagement with the nut. Fig. 3 is across-section on the line at .50, Fig. 1. Fig. 4 is a plan view of thelockingarm detached. Fig. 5 is a sectional view of a modification.

In the said drawings the reference-numeral 1 designates tworailroad-rails, and 3 a fishplate, which may be of any ordinary orsuitable construction. These rails and fish-plates are formed withaligned apertures, through which pass bolts i provided with nuts 5,which may be square, hexagonal or of any other form desirable.

Connected with the fish-plate at one side of each of the bolts 4 is ascrew-bolt 6,.which engages with a correspondingly-threaded aperto thispin between the head thereof and one of the sides of the bolt is alocking-arm 9 having a flattened head 10.

The numeral 11 designates a screw-pin, also engaging with acorresponding recess in the head 7, to which is pivoted a plate 12,which, when the locking-arm is thrown into engagement with the nut, canbe turned over the end thereof and thus hold it in place.

In the modification shown in Fig. 5 the bolt is made with a bottomleft-hand screwthreaded recess and the screw-bolt is formed withcorresponding screw-threads. The locking-arm 9 in this instance is bentbackward at aright angle and the extremity turned inward at an angle, sothat when turned on its pivot said extremity will engage with the sideof the nut and lock the same. The plate 12 is also bent at an angle atits free end and its axis is at a right angle to the axis of plate 9, sothat it can be turned sidewise with respect to said latter plate, andits turn ed or inwardlybent end engaging with the outer edge of plate 9will prevent the same from turning on its pivot, thus locking the nut.

While I have shown and described the device as being used for connectingtwo railroad-rails together, it is obvious that it may be employed forall other purposes for which nut-locks are applicable.

Having thus fully described my invention, what I claim is- In anut-lock, the combination with the screw-bolt adapted to be passedthrough apertures in a railroad-rail and fish-plates and having ascrew-threaded recess in one end and a head at the other end, the nutfitting on said bolt, the headed screw-bolt fitting in said recess, thelocking-plate pivoted to one side of the head and the plate pivoted tothe end of the head adapted to be turned down against the side of saidlocking-plate and hold it in place, substantially as described.

In testimony that I claim the foregoing as my own I have hereuntoaffixed my signature in presence of two witnesses.

FRED REESSING. Witnesses:

N. P. LARSON, L. V. EKLUND.

